--- /dev/null
+<?php
+
+/**
+ * UnitConversions
+ *
+ * @package Less
+ * @subpackage tree
+ */
+class Less_Tree_UnitConversions{
+
+ public static $groups = array('length','duration','angle');
+
+ public static $length = array(
+ 'm'=> 1,
+ 'cm'=> 0.01,
+ 'mm'=> 0.001,
+ 'in'=> 0.0254,
+ 'px'=> 0.000264583, // 0.0254 / 96,
+ 'pt'=> 0.000352778, // 0.0254 / 72,
+ 'pc'=> 0.004233333, // 0.0254 / 72 * 12
+ );
+
+ public static $duration = array(
+ 's'=> 1,
+ 'ms'=> 0.001
+ );
+
+ public static $angle = array(
+ 'rad' => 0.1591549430919, // 1/(2*M_PI),
+ 'deg' => 0.002777778, // 1/360,
+ 'grad'=> 0.0025, // 1/400,
+ 'turn'=> 1
+ );
+
+}
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